Key Configuration Settings When Deploying a Web Application
The configuration information for an ASP.NET application is stored in one or more XML-based configuration files named Web.config . The default configuration settings for all web applications on the web server are spelled out in the Web.config file in the $WINDOWS$Microsoft.NETFramework version CONFIG folder. These default settings can be added to over overridden for a specific web application by the Web.config file in that application’s root directory. Moreover, these configuration settings can be customized for a web application on a folder-by-folder basis by adding Web.config files to the application’s subfolders
